A new warning in Clang 22 [1] complains that @clidr passed to get_clidr_el1() is an uninitialized const pointer. get_clidr_el1() doesn't really care since it casts away the const-ness anyways.
Silence the warning by initializing the struct.
This patch won't apply to anything past v6.1 as this code section was reworked in Commit 7af0c2534f4c ("KVM: arm64: Normalize cache configuration"). There is no upstream equivalent so this patch only needs to be applied (stable only) to 6.1.
Cc: stable@vger.kernel.org Fixes: 7c8c5e6a9101e ("arm64: KVM: system register handling") Link: https://github.com/llvm/llvm-project/commit/00dacf8c22f065cb52efb14cd091d441... [1] Signed-off-by: Justin Stitt justinstitt@google.com --- Resending this with Nathan's RB tag, an updated commit log and better recipients from checkpatch.pl.
I've also sent a similar patch resend for 5.15 --- arch/arm64/kvm/sys_regs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index f4a7c5abcbca..d7ebd7387221 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -2948,7 +2948,7 @@ int kvm_sys_reg_table_init(void) { bool valid = true; unsigned int i; - struct sys_reg_desc clidr; + struct sys_reg_desc clidr = {0};
/* Make sure tables are unique and in order. */ valid &= check_sysreg_table(sys_reg_descs, ARRAY_SIZE(sys_reg_descs), false);
--- base-commit: 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 change-id: 20250724-b4-clidr-unint-const-ptr-7edb960bc3bd
Best regards, -- Justin Stitt justinstitt@google.com